WU, Q.-S., and Y.-N. ZOU. “The Effect of Dual Application of Arbuscular Mycorrhizal Fungi and Polyamines Upon Growth and Nutrient Uptake on Trifoliate Orange (Poncirus Trifoliata) Seedlings”. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, vol. 37, no. 2, Nov. 2009, pp. 95-98, doi:10.15835/nbha3723237.